Ni–Sc phases

10 phases (tier A 6, tier C 1, liquid 1, needs_review 2); 10 stable in a calculated diagram. Structure types are assigned only when the stored evidence supports an assignment under the stated tier rules (tier A: standard phase name; tier B: unique Materials Project + OQMD on-hull match, DFT-supported; tier C: one structure stated by the assessment's crystallographic table, assessor-stated); other phases list candidates and are marked needs_review. Stability is from phase diagrams calculated with pycalphad from the SGTE binary collection (evidence class: model).

Data: interactive registry · full JSON · Ni–Sc system page · Markdown · field reference

Phases of the Ni–Sc system (10)
Phase	Structure	Basis	Stability (calculated)	Literature values	TDB models
BCC_A2 phase:ni-sc:bcc-a2	W · A2 · cI2 · Im-3m (229)	tier A: standard phase name	stable in 3 of 3 calculated diagram(s): 1160–2499.14 K, x(Sc) 0.93989–1	13	4
B2_BCC phase:ni-sc:bcc-b2	CsCl · B2 · cP2 · Pm-3m (221)	tier A: standard phase name	stable in 1 of 1 calculated diagram(s): 300–2161.01 K, x(Sc) 0.49991–1	8	1
C15_LAVES phase:ni-sc:c15-laves	Cu2Mg · C15 · cF24 · Fd-3m (227)	tier A: standard phase name	stable in 3 of 3 calculated diagram(s): 300–1581.16 K, x(Sc) 0.27895–0.3499	31	3
FCC_A1 phase:ni-sc:fcc-a1	Cu · A1 · cF4 · Fm-3m (225)	tier A: standard phase name	stable in 3 of 3 calculated diagram(s): 300–1770.42 K, x(Sc) 0–0.00706	15	3
HCP_A3 phase:ni-sc:hcp-a3	Mg · A3 · hP2 · P6_3/mmc (194)	tier A: standard phase name	stable in 3 of 3 calculated diagram(s): 300–1882.97 K, x(Sc) 0.98992–1	22	3
LIQUID phase:ni-sc:liquid	liquid	liquid	stable in 3 of 3 calculated diagram(s): 1112.71–2500 K, x(Sc) 0–1	110	3
NI5SC_D2D phase:ni-sc:ni5sc-d2d	CaCu5 · D2_d · hP6 · P6/mmm (191)	tier A: standard phase name	stable in 3 of 3 calculated diagram(s): 300–1455.72 K, x(Sc) 0.16667–0.16667	26	3
NI7SC2 phase:ni-sc:ni7sc2	Ce2Ni7 · hP36 · P6_3/mmc (194)	tier C: assessor-stated (Hallstedt 2025 crystallographic table)	stable in 3 of 3 calculated diagram(s): 300–1564.33 K, x(Sc) 0.22222–0.22222	34	3
NISC_B2 phase:ni-sc:nisc-b2		needs_review	stable in 2 of 2 calculated diagram(s): 300–1542.73 K, x(Sc) 0.53–0.53	20	2
NISC2 phase:ni-sc:nisc2		needs_review	stable in 3 of 3 calculated diagram(s): 300–1270 K, x(Sc) 0.72–0.72	27	3

BCC_A2 (Ni–Sc)

Id: phase:ni-sc:bcc-a2; status assigned
Structure: W · A2 · cI2 · Im-3m (229); type st:a2-w-ci2; tier A: standard phase name; confidence high
Stability: stable in 3 of 3 calculated diagram(s): 1160–2499.14 K, x(Sc) 0.93989–1
Literature: 13 values (13 accepted) from 3 papers
Interactive: phase registry entry

Names (8): corpus: corpus:phase:ni-sc:bcc-a2
paper: paper:10.1016/j.calphad.2013.07.003:BCC_A2, paper:10.1016/j.calphad.2014.11.005:Bcc_A2, paper:10.1016/j.tca.2014.04.006:(βSc)
tdb: tdb:NiSc-13Kar.tdb:BCC_A2, tdb:NiSc-14Cao.tdb:A2_BCC, tdb:NiSc-14Cao.tdb:BCC_A2, tdb:NiSc-15Zhu.tdb:BCC_A2

TDB models of BCC_A2 (4): PHASE and CONSTITUENT statements as written

NiSc-13Kar.tdb: BCC_A2, type code %B, sha256 49e8d54d4d81024b…

41: PHASE BCC_A2 %B 2 1 3 !
42: CONST BCC_A2 : NI SC% : VA : !

NiSc-14Cao.tdb: A2_BCC, type code %B, sha256 ff80233bcc4a5f5d…

40: PHASE A2_BCC %B 2 1 3 !
41: CONST A2_BCC : NI SC : VA : !

NiSc-14Cao.tdb: BCC_A2, type code %B, sha256 ff80233bcc4a5f5d…

35: PHASE BCC_A2 %B 2 1 3 !
36: CONST BCC_A2 : NI SC% : VA : !

NiSc-15Zhu.tdb: BCC_A2, type code %B, sha256 93e76d916a3807e7…

39: PHASE BCC_A2 %B 2 1 3 !
40: CONST BCC_A2 : NI SC% : VA : !

Example references (4 of 4; assessments first):

doi:10.1016/j.calphad.2013.07.003 S. Kardellass, C. Servant, N. Selhaoui, A. Iddaoudi, M. Ait Amar, L. Bouirden, Thermodynamic description of the Ni–Sc system, Calphad 42, 59-65 (2013).
assessment that models this phase; cited as the source of values for this phase; reports values for this phase
doi:10.1016/j.calphad.2014.11.005 Daiman Zhu, Changrong Li, Cuiping Guo, Zhenmin Du, Junqin Li, Thermodynamic assessment of the Ni–Sc binary system, Calphad 48, 106-112 (2015).
assessment that models this phase; reports values for this phase
doi:10.1016/j.tca.2014.04.006 Zhaoping Cao, Shuhong Liu, Xu Fang, Kaiming Cheng, Qiannan Gao, Yong Du et al., Experimental investigation and thermodynamic analysis of the Sc–Ni system supplemented with first-principles calculations, Thermochimica Acta 586, 30-39 (2014).
assessment that models this phase; reports values for this phase
doi:10.1016/s0925-8388(97)00467-2 E.L. Semenova, N.Yu. Rusetskaya, The ScNi system, Journal of Alloys and Compounds 262-263, 258-262 (1997).
cited as the source of values for this phase

B2_BCC (Ni–Sc)

Id: phase:ni-sc:bcc-b2; status assigned
Structure: CsCl · B2 · cP2 · Pm-3m (221); type st:b2-cscl-cp2; tier A: standard phase name; confidence high
Caveat: NiSc-14Cao.tdb: ordered phase with disordered part A2_BCC (order/disorder model)
Caveat: partitioned order/disorder model in NiSc-14Cao.tdb also describes the disordered state
Stability: stable in 1 of 1 calculated diagram(s): 300–2161.01 K, x(Sc) 0.49991–1
Literature: 8 values (8 accepted) from 1 papers
Interactive: phase registry entry

Names (4): corpus: corpus:phase:ni-sc:bcc-b2, corpus:phase:ni-sc:b2-bcc
paper: paper:10.1016/j.tca.2014.04.006:ScNi
tdb: tdb:NiSc-14Cao.tdb:B2_BCC

TDB models of B2_BCC (1): PHASE and CONSTITUENT statements as written

NiSc-14Cao.tdb: B2_BCC, type code %BO, sha256 ff80233bcc4a5f5d…

45: PHASE B2_BCC %BO 3 0.5 0.5 3 !
46: CONST B2_BCC : NI SC : NI SC : VA :  !

Example references (2 of 2; assessments first):

doi:10.1016/j.tca.2014.04.006 Zhaoping Cao, Shuhong Liu, Xu Fang, Kaiming Cheng, Qiannan Gao, Yong Du et al., Experimental investigation and thermodynamic analysis of the Sc–Ni system supplemented with first-principles calculations, Thermochimica Acta 586, 30-39 (2014).
assessment that models this phase; reports values for this phase
doi:10.1016/s0925-8388(97)00467-2 E.L. Semenova, N.Yu. Rusetskaya, The ScNi system, Journal of Alloys and Compounds 262-263, 258-262 (1997).
cited as the source of values for this phase

C15_LAVES (Ni–Sc)

Id: phase:ni-sc:c15-laves; status assigned
Structure: Cu2Mg · C15 · cF24 · Fd-3m (227); type st:c15-cu2mg-cf24; tier A: standard phase name; confidence high
Caveat: partitioned order/disorder model in NiSc-13Kar.tdb also describes the disordered state
Caveat: partitioned order/disorder model in NiSc-14Cao.tdb also describes the disordered state
Caveat: partitioned order/disorder model in NiSc-15Zhu.tdb also describes the disordered state
Stability: stable in 3 of 3 calculated diagram(s): 300–1581.16 K, x(Sc) 0.27895–0.3499
Literature: 31 values (31 accepted) from 3 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:ni-sc:c15-laves
paper: paper:10.1016/j.calphad.2013.07.003:Ni2Sc, paper:10.1016/j.calphad.2014.11.005:(ScNi2), paper:10.1016/j.tca.2014.04.006:ScNi2
tdb: tdb:NiSc-13Kar.tdb:C15_LAVES, tdb:NiSc-14Cao.tdb:C15_LAVES, tdb:NiSc-15Zhu.tdb:C15_LAVES

TDB models of C15_LAVES (3): PHASE and CONSTITUENT statements as written

NiSc-13Kar.tdb: C15_LAVES, type code %, sha256 49e8d54d4d81024b…

61: PHASE C15_LAVES % 2 2 1 !
62: CONST C15_LAVES : NI% SC : NI SC% : !

NiSc-14Cao.tdb: C15_LAVES, type code %, sha256 ff80233bcc4a5f5d…

65: PHASE C15_LAVES % 2 2 1 !
66: CONST C15_LAVES : NI% SC : NI SC% : !

NiSc-15Zhu.tdb: C15_LAVES, type code %, sha256 93e76d916a3807e7…

59: PHASE C15_LAVES % 2 2 1 !
60: CONST C15_LAVES : NI% SC : NI SC% : !

Example references (4 of 4; assessments first):

doi:10.1016/j.calphad.2013.07.003 S. Kardellass, C. Servant, N. Selhaoui, A. Iddaoudi, M. Ait Amar, L. Bouirden, Thermodynamic description of the Ni–Sc system, Calphad 42, 59-65 (2013).
assessment that models this phase; cited as the source of values for this phase; reports values for this phase
doi:10.1016/j.calphad.2014.11.005 Daiman Zhu, Changrong Li, Cuiping Guo, Zhenmin Du, Junqin Li, Thermodynamic assessment of the Ni–Sc binary system, Calphad 48, 106-112 (2015).
assessment that models this phase; reports values for this phase
doi:10.1016/j.tca.2014.04.006 Zhaoping Cao, Shuhong Liu, Xu Fang, Kaiming Cheng, Qiannan Gao, Yong Du et al., Experimental investigation and thermodynamic analysis of the Sc–Ni system supplemented with first-principles calculations, Thermochimica Acta 586, 30-39 (2014).
assessment that models this phase; reports values for this phase
doi:10.1016/s0925-8388(97)00467-2 E.L. Semenova, N.Yu. Rusetskaya, The ScNi system, Journal of Alloys and Compounds 262-263, 258-262 (1997).
cited as the source of values for this phase

FCC_A1 (Ni–Sc)

Id: phase:ni-sc:fcc-a1; status assigned
Structure: Cu · A1 · cF4 · Fm-3m (225); type st:a1-cu-cf4; tier A: standard phase name; confidence high
Stability: stable in 3 of 3 calculated diagram(s): 300–1770.42 K, x(Sc) 0–0.00706
Literature: 15 values (15 accepted) from 3 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:ni-sc:fcc-a1
paper: paper:10.1016/j.calphad.2013.07.003:FCC_A1, paper:10.1016/j.calphad.2014.11.005:Fcc_A1, paper:10.1016/j.tca.2014.04.006:(Ni)
tdb: tdb:NiSc-13Kar.tdb:FCC_A1, tdb:NiSc-14Cao.tdb:FCC_A1, tdb:NiSc-15Zhu.tdb:FCC_A1

TDB models of FCC_A1 (3): PHASE and CONSTITUENT statements as written

NiSc-13Kar.tdb: FCC_A1, type code %A, sha256 49e8d54d4d81024b…

36: PHASE FCC_A1 %A 2 1 1 !
37: CONST FCC_A1 : NI% SC : VA : !

NiSc-14Cao.tdb: FCC_A1, type code %A, sha256 ff80233bcc4a5f5d…

30: PHASE FCC_A1 %A 2 1 1 !
31: CONST FCC_A1 : NI% SC : VA : !

NiSc-15Zhu.tdb: FCC_A1, type code %A, sha256 93e76d916a3807e7…

34: PHASE FCC_A1 %A 2 1 1 !
35: CONST FCC_A1 : NI% SC : VA : !

Example references (4 of 4; assessments first):

doi:10.1016/j.calphad.2013.07.003 S. Kardellass, C. Servant, N. Selhaoui, A. Iddaoudi, M. Ait Amar, L. Bouirden, Thermodynamic description of the Ni–Sc system, Calphad 42, 59-65 (2013).
assessment that models this phase; cited as the source of values for this phase; reports values for this phase
doi:10.1016/j.calphad.2014.11.005 Daiman Zhu, Changrong Li, Cuiping Guo, Zhenmin Du, Junqin Li, Thermodynamic assessment of the Ni–Sc binary system, Calphad 48, 106-112 (2015).
assessment that models this phase; reports values for this phase
doi:10.1016/j.tca.2014.04.006 Zhaoping Cao, Shuhong Liu, Xu Fang, Kaiming Cheng, Qiannan Gao, Yong Du et al., Experimental investigation and thermodynamic analysis of the Sc–Ni system supplemented with first-principles calculations, Thermochimica Acta 586, 30-39 (2014).
assessment that models this phase; reports values for this phase
doi:10.1016/s0925-8388(97)00467-2 E.L. Semenova, N.Yu. Rusetskaya, The ScNi system, Journal of Alloys and Compounds 262-263, 258-262 (1997).
cited as the source of values for this phase

HCP_A3 (Ni–Sc)

Id: phase:ni-sc:hcp-a3; status assigned
Structure: Mg · A3 · hP2 · P6_3/mmc (194); type st:a3-mg-hp2; tier A: standard phase name; confidence high
Stability: stable in 3 of 3 calculated diagram(s): 300–1882.97 K, x(Sc) 0.98992–1
Literature: 22 values (22 accepted) from 3 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:ni-sc:hcp-a3
paper: paper:10.1016/j.calphad.2013.07.003:HCP_A3, paper:10.1016/j.calphad.2014.11.005:Hcp_A3, paper:10.1016/j.tca.2014.04.006:(αSc)
tdb: tdb:NiSc-13Kar.tdb:HCP_A3, tdb:NiSc-14Cao.tdb:HCP_A3, tdb:NiSc-15Zhu.tdb:HCP_A3

TDB models of HCP_A3 (3): PHASE and CONSTITUENT statements as written

NiSc-13Kar.tdb: HCP_A3, type code %A, sha256 49e8d54d4d81024b…

46: PHASE HCP_A3 %A 2 1 0.5 !
47: CONST HCP_A3 : NI SC% : VA : !

NiSc-14Cao.tdb: HCP_A3, type code %A, sha256 ff80233bcc4a5f5d…

50: PHASE HCP_A3 %A 2 1 0.5 !
51: CONST HCP_A3 : NI SC% : VA : !

NiSc-15Zhu.tdb: HCP_A3, type code %A, sha256 93e76d916a3807e7…

44: PHASE HCP_A3 %A 2 1 0.5 !
45: CONST HCP_A3 : NI SC% : VA : !

Example references (4 of 4; assessments first):

doi:10.1016/j.calphad.2013.07.003 S. Kardellass, C. Servant, N. Selhaoui, A. Iddaoudi, M. Ait Amar, L. Bouirden, Thermodynamic description of the Ni–Sc system, Calphad 42, 59-65 (2013).
assessment that models this phase; cited as the source of values for this phase; reports values for this phase
doi:10.1016/j.calphad.2014.11.005 Daiman Zhu, Changrong Li, Cuiping Guo, Zhenmin Du, Junqin Li, Thermodynamic assessment of the Ni–Sc binary system, Calphad 48, 106-112 (2015).
assessment that models this phase; reports values for this phase
doi:10.1016/j.tca.2014.04.006 Zhaoping Cao, Shuhong Liu, Xu Fang, Kaiming Cheng, Qiannan Gao, Yong Du et al., Experimental investigation and thermodynamic analysis of the Sc–Ni system supplemented with first-principles calculations, Thermochimica Acta 586, 30-39 (2014).
assessment that models this phase; reports values for this phase
doi:10.1016/s0925-8388(97)00467-2 E.L. Semenova, N.Yu. Rusetskaya, The ScNi system, Journal of Alloys and Compounds 262-263, 258-262 (1997).
cited as the source of values for this phase

LIQUID (Ni–Sc)

Id: phase:ni-sc:liquid; status assigned
Structure: liquid; type st:liquid; liquid; confidence high
Stability: stable in 3 of 3 calculated diagram(s): 1112.71–2500 K, x(Sc) 0–1
Literature: 110 values (110 accepted) from 3 papers
Interactive: phase registry entry

Names (8): corpus: corpus:phase:ni-sc:liquid
paper: paper:10.1016/j.calphad.2013.07.003:L, paper:10.1016/j.calphad.2014.11.005:Liq, paper:10.1016/j.tca.2014.04.006:Liquid, paper:10.1016/j.tca.2014.04.006:liquid
tdb: tdb:NiSc-13Kar.tdb:LIQUID, tdb:NiSc-14Cao.tdb:LIQUID, tdb:NiSc-15Zhu.tdb:LIQUID

TDB models of LIQUID (3): PHASE and CONSTITUENT statements as written

NiSc-13Kar.tdb: LIQUID, type code %, sha256 49e8d54d4d81024b…

31: PHASE LIQUID:L % 1 1 !
32: CONST LIQUID:L : NI SC : !

NiSc-14Cao.tdb: LIQUID, type code %, sha256 ff80233bcc4a5f5d…

25: PHASE LIQUID:L % 1 1 !
26: CONST LIQUID:L : NI SC : !

NiSc-15Zhu.tdb: LIQUID, type code %, sha256 93e76d916a3807e7…

29: PHASE LIQUID:L % 1 1 !
30: CONST LIQUID:L : NI NISC SC : !

Example references (4 of 4; assessments first):

doi:10.1016/j.calphad.2013.07.003 S. Kardellass, C. Servant, N. Selhaoui, A. Iddaoudi, M. Ait Amar, L. Bouirden, Thermodynamic description of the Ni–Sc system, Calphad 42, 59-65 (2013).
assessment that models this phase; cited as the source of values for this phase; reports values for this phase
doi:10.1016/j.calphad.2014.11.005 Daiman Zhu, Changrong Li, Cuiping Guo, Zhenmin Du, Junqin Li, Thermodynamic assessment of the Ni–Sc binary system, Calphad 48, 106-112 (2015).
assessment that models this phase; reports values for this phase
doi:10.1016/j.tca.2014.04.006 Zhaoping Cao, Shuhong Liu, Xu Fang, Kaiming Cheng, Qiannan Gao, Yong Du et al., Experimental investigation and thermodynamic analysis of the Sc–Ni system supplemented with first-principles calculations, Thermochimica Acta 586, 30-39 (2014).
assessment that models this phase; reports values for this phase
doi:10.1016/s0925-8388(97)00467-2 E.L. Semenova, N.Yu. Rusetskaya, The ScNi system, Journal of Alloys and Compounds 262-263, 258-262 (1997).
cited as the source of values for this phase

NI5SC_D2D (Ni–Sc)

Id: phase:ni-sc:ni5sc-d2d; status assigned
Structure: CaCu5 · D2_d · hP6 · P6/mmm (191); type st:d2-d-cacu5-hp6; tier A: standard phase name; confidence high
Stoichiometry: Ni 0.8333, Sc 0.1667
Stability: stable in 3 of 3 calculated diagram(s): 300–1455.72 K, x(Sc) 0.16667–0.16667
Literature: 26 values (26 accepted) from 3 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:ni-sc:ni5sc-d2d
paper: paper:10.1016/j.calphad.2013.07.003:Ni5Sc, paper:10.1016/j.calphad.2014.11.005:ScNi5, paper:10.1016/j.tca.2014.04.006:ScNi5
tdb: tdb:NiSc-13Kar.tdb:NI5SC_D2D, tdb:NiSc-14Cao.tdb:NI5SC_D2D, tdb:NiSc-15Zhu.tdb:NI5SC_D2D

TDB models of NI5SC_D2D (3): PHASE and CONSTITUENT statements as written

NiSc-13Kar.tdb: NI5SC_D2D, type code %, sha256 49e8d54d4d81024b…

51: PHASE NI5SC_D2D % 2 5 1 !
52: CONST NI5SC_D2D : NI : SC : !

NiSc-14Cao.tdb: NI5SC_D2D, type code %, sha256 ff80233bcc4a5f5d…

55: PHASE NI5SC_D2D % 2 5 1 !
56: CONST NI5SC_D2D : NI : SC : !

NiSc-15Zhu.tdb: NI5SC_D2D, type code %, sha256 93e76d916a3807e7…

49: PHASE NI5SC_D2D % 2 5 1 !
50: CONST NI5SC_D2D : NI : SC : !

Example references (4 of 4; assessments first):

doi:10.1016/j.calphad.2014.11.005 Daiman Zhu, Changrong Li, Cuiping Guo, Zhenmin Du, Junqin Li, Thermodynamic assessment of the Ni–Sc binary system, Calphad 48, 106-112 (2015).
assessment that models this phase; reports values for this phase
doi:10.1016/j.calphad.2013.07.003 S. Kardellass, C. Servant, N. Selhaoui, A. Iddaoudi, M. Ait Amar, L. Bouirden, Thermodynamic description of the Ni–Sc system, Calphad 42, 59-65 (2013).
assessment that models this phase; cited as the source of values for this phase; reports values for this phase
doi:10.1016/j.tca.2014.04.006 Zhaoping Cao, Shuhong Liu, Xu Fang, Kaiming Cheng, Qiannan Gao, Yong Du et al., Experimental investigation and thermodynamic analysis of the Sc–Ni system supplemented with first-principles calculations, Thermochimica Acta 586, 30-39 (2014).
assessment that models this phase; reports values for this phase
doi:10.1016/s0925-8388(97)00467-2 E.L. Semenova, N.Yu. Rusetskaya, The ScNi system, Journal of Alloys and Compounds 262-263, 258-262 (1997).
cited as the source of values for this phase

NI7SC2 (Ni–Sc)

Id: phase:ni-sc:ni7sc2; status assigned
Structure: Ce2Ni7 · hP36 · P6_3/mmc (194); type st:ce2ni7-hp36; tier C: assessor-stated (Hallstedt 2025 crystallographic table); confidence assessor-stated
Structure source: B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, supplementary crystallographic table (mmc2) doi:10.1016/j.calphad.2025.102833
Caveat: not certain from the name or DFT alone (mp_oqmd_space_groups_differ, no_structure_token); structure as stated in the SGTE crystallographic table for this phase name and system
Stoichiometry: Ni 0.7778, Sc 0.2222
Stability: stable in 3 of 3 calculated diagram(s): 300–1564.33 K, x(Sc) 0.22222–0.22222
Literature: 34 values (34 accepted) from 3 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:ni-sc:ni7sc2
paper: paper:10.1016/j.calphad.2013.07.003:Ni7Sc2, paper:10.1016/j.calphad.2014.11.005:Sc2Ni7, paper:10.1016/j.tca.2014.04.006:Sc2Ni7
tdb: tdb:NiSc-13Kar.tdb:NI7SC2, tdb:NiSc-14Cao.tdb:NI7SC2, tdb:NiSc-15Zhu.tdb:NI7SC2

TDB models of NI7SC2 (3): PHASE and CONSTITUENT statements as written

NiSc-13Kar.tdb: NI7SC2, type code %, sha256 49e8d54d4d81024b…

56: PHASE NI7SC2 % 2 7 2 !
57: CONST NI7SC2 : NI : SC : !

NiSc-14Cao.tdb: NI7SC2, type code %, sha256 ff80233bcc4a5f5d…

60: PHASE NI7SC2 % 2 7 2 !
61: CONST NI7SC2 : NI : SC : !

NiSc-15Zhu.tdb: NI7SC2, type code %, sha256 93e76d916a3807e7…

54: PHASE NI7SC2 % 2 7 2 !
55: CONST NI7SC2 : NI : SC : !

Example references (4 of 4; assessments first):

doi:10.1016/j.calphad.2013.07.003 S. Kardellass, C. Servant, N. Selhaoui, A. Iddaoudi, M. Ait Amar, L. Bouirden, Thermodynamic description of the Ni–Sc system, Calphad 42, 59-65 (2013).
assessment that models this phase; cited as the source of values for this phase; reports values for this phase
doi:10.1016/j.calphad.2014.11.005 Daiman Zhu, Changrong Li, Cuiping Guo, Zhenmin Du, Junqin Li, Thermodynamic assessment of the Ni–Sc binary system, Calphad 48, 106-112 (2015).
assessment that models this phase; reports values for this phase
doi:10.1016/j.tca.2014.04.006 Zhaoping Cao, Shuhong Liu, Xu Fang, Kaiming Cheng, Qiannan Gao, Yong Du et al., Experimental investigation and thermodynamic analysis of the Sc–Ni system supplemented with first-principles calculations, Thermochimica Acta 586, 30-39 (2014).
assessment that models this phase; reports values for this phase
doi:10.1016/s0925-8388(97)00467-2 E.L. Semenova, N.Yu. Rusetskaya, The ScNi system, Journal of Alloys and Compounds 262-263, 258-262 (1997).
cited as the source of values for this phase

NISC_B2 (Ni–Sc)

Id: phase:ni-sc:nisc-b2; status needs_review
No structure assigned. Why: assessment_declared_blocked_by:stoichiometry_contradicts_B2; stoichiometry_contradicts_B2:NiSc-13Kar.tdb; stoichiometry_contradicts_B2:NiSc-15Zhu.tdb
Candidate (literature_printed): CsCl · cP2 — printed with a label mapped to this phase
Candidate (name_token): CsCl · B2 · cP2 · Pm-3m (221) — Strukturbericht/word 'B2' in the TDB name
Candidate (sgte_mmc2): CsCl · B2 · cP2 · Pm-3m (221) — Hallstedt 2025 mmc2 row for NISC_B2: NiSc
Candidate (tdb_comment): CsCl · cP2 · Pm-3m — NiSc-13Kar.tdb: 'Prototype CsCl (cP2, Pm-3m)'
Candidate (tdb_comment): CsCl · cP2 · Pm-3m — NiSc-15Zhu.tdb: 'Prototype CsCl (cP2, Pm-3m)'
Stoichiometry: Ni 0.4700, Sc 0.5300
Stability: stable in 2 of 2 calculated diagram(s): 300–1542.73 K, x(Sc) 0.53–0.53
Literature: 20 values (20 accepted) from 2 papers
Interactive: phase registry entry

Names (5): corpus: corpus:phase:ni-sc:nisc-b2
paper: paper:10.1016/j.calphad.2013.07.003:NiSc, paper:10.1016/j.calphad.2014.11.005:ScNi
tdb: tdb:NiSc-13Kar.tdb:NISC_B2, tdb:NiSc-15Zhu.tdb:NISC_B2

TDB models of NISC_B2 (2): PHASE and CONSTITUENT statements as written

NiSc-13Kar.tdb: NISC_B2, type code %, sha256 49e8d54d4d81024b…

66: PHASE NISC_B2 % 2 0.47 0.53 !
67: CONST NISC_B2 : NI : SC : !

NiSc-15Zhu.tdb: NISC_B2, type code %, sha256 93e76d916a3807e7…

64: PHASE NISC_B2 % 2 0.47 0.53 !
65: CONST NISC_B2 : NI : SC : !

Example references (3 of 3; assessments first):

doi:10.1016/j.calphad.2013.07.003 S. Kardellass, C. Servant, N. Selhaoui, A. Iddaoudi, M. Ait Amar, L. Bouirden, Thermodynamic description of the Ni–Sc system, Calphad 42, 59-65 (2013).
assessment that models this phase; cited as the source of values for this phase; reports values for this phase
doi:10.1016/j.calphad.2014.11.005 Daiman Zhu, Changrong Li, Cuiping Guo, Zhenmin Du, Junqin Li, Thermodynamic assessment of the Ni–Sc binary system, Calphad 48, 106-112 (2015).
assessment that models this phase; reports values for this phase
doi:10.1016/s0925-8388(97)00467-2 E.L. Semenova, N.Yu. Rusetskaya, The ScNi system, Journal of Alloys and Compounds 262-263, 258-262 (1997).
cited as the source of values for this phase

NISC2 (Ni–Sc)

Id: phase:ni-sc:nisc2; status needs_review
No structure assigned. Why: assessment_declared_compound_differs_from_model_composition; no_on_hull_entry_in_both; no_structure_token
Candidate (literature_printed): NiTi2 · cF96 — printed with a label mapped to this phase
Candidate (sgte_mmc2): NiTi2 · cF96 · Fd-3m (227) — Hallstedt 2025 mmc2 row for NISC2: NiSc2
Candidate (tdb_comment): NiTi2 · cF96 · Fd-3m — NiSc-13Kar.tdb: 'Prototype NiTi2 (cF96, Fd-3m)'
Candidate (tdb_comment): NiTi2 · cF96 · Fd-3m — NiSc-14Cao.tdb: 'Prototype NiTi2 (cF96, Fd-3m)'
Candidate (tdb_comment): NiTi2 · cF96 · Fd-3m — NiSc-15Zhu.tdb: 'Prototype NiTi2 (cF96, Fd-3m)'
Stoichiometry: Ni 0.2800, Sc 0.7200
Stability: stable in 3 of 3 calculated diagram(s): 300–1270 K, x(Sc) 0.72–0.72
Literature: 27 values (27 accepted) from 3 papers
Interactive: phase registry entry

Names (7): corpus: corpus:phase:ni-sc:nisc2
paper: paper:10.1016/j.calphad.2013.07.003:NiSc2, paper:10.1016/j.calphad.2014.11.005:Sc2Ni, paper:10.1016/j.tca.2014.04.006:Sc2Ni
tdb: tdb:NiSc-13Kar.tdb:NISC2, tdb:NiSc-14Cao.tdb:NISC2, tdb:NiSc-15Zhu.tdb:NISC2

TDB models of NISC2 (3): PHASE and CONSTITUENT statements as written

NiSc-13Kar.tdb: NISC2, type code %, sha256 49e8d54d4d81024b…

71: PHASE NISC2 % 2 7 18 !
72: CONST NISC2 : NI : SC : !

NiSc-14Cao.tdb: NISC2, type code %, sha256 ff80233bcc4a5f5d…

70: PHASE NISC2 % 2 7 18 !
71: CONST NISC2 : NI : SC : !

NiSc-15Zhu.tdb: NISC2, type code %, sha256 93e76d916a3807e7…

69: PHASE NISC2 % 2 7 18 !
70: CONST NISC2 : NI : SC : !

Example references (4 of 4; assessments first):

doi:10.1016/j.calphad.2013.07.003 S. Kardellass, C. Servant, N. Selhaoui, A. Iddaoudi, M. Ait Amar, L. Bouirden, Thermodynamic description of the Ni–Sc system, Calphad 42, 59-65 (2013).
assessment that models this phase; cited as the source of values for this phase; reports values for this phase
doi:10.1016/j.calphad.2014.11.005 Daiman Zhu, Changrong Li, Cuiping Guo, Zhenmin Du, Junqin Li, Thermodynamic assessment of the Ni–Sc binary system, Calphad 48, 106-112 (2015).
assessment that models this phase; reports values for this phase
doi:10.1016/j.tca.2014.04.006 Zhaoping Cao, Shuhong Liu, Xu Fang, Kaiming Cheng, Qiannan Gao, Yong Du et al., Experimental investigation and thermodynamic analysis of the Sc–Ni system supplemented with first-principles calculations, Thermochimica Acta 586, 30-39 (2014).
assessment that models this phase; reports values for this phase
doi:10.1016/s0925-8388(97)00467-2 E.L. Semenova, N.Yu. Rusetskaya, The ScNi system, Journal of Alloys and Compounds 262-263, 258-262 (1997).
cited as the source of values for this phase

Please cite

R. Arróyave, J. Saal, D. Shin, ORCHID-Registry: phase registry of binary systems (version 2026.10; Version 1, machine-extracted), Zenodo (2026). doi:10.5281/zenodo.23735970
R. Arróyave, J. Saal, D. Shin, ORCHID data: umbrella record of the ORCHID datasets (version 2026.10; Version 1, machine-extracted), Zenodo (2026). doi:10.5281/zenodo.23736065

Also cite B. Hallstedt, The SGTE collection of binary datasets, Calphad 89 (2025) 102833, https://doi.org/10.1016/j.calphad.2025.102833 (CC BY 4.0), and the original assessment named in each file; A. Jain et al., The Materials Project: A materials genome approach to accelerating materials innovation, APL Materials 1 (2013) 011002, https://doi.org/10.1063/1.4812323 (CC BY 4.0); J. E. Saal et al., JOM 65 (2013) 1501, https://doi.org/10.1007/s11837-013-0755-4 and S. Kirklin et al., npj Comput. Mater. 1 (2015) 15010, https://doi.org/10.1038/npjcompumats.2015.10 (CC BY 4.0); the original source of every value you use (paper_citation / paper_doi, and cited_dois for values the paper cites from earlier work). Version 1, machine-extracted: values were read by language-model readers constrained to quote their source and checked automatically, and the release was then audited on the printed pages by adversarial audits, an independent second review of fit-facing records and a preliminary human review of a frozen sample. Flags such as accepted and ESPEI-ready record screening results, not certification; known issues are listed in the release notes.

@misc{orchid_phase_registry_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID-Registry: phase registry of binary systems}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23735970},
  url       = {https://doi.org/10.5281/zenodo.23735970},
  note      = {Version 1, machine-extracted}
}

@misc{orchid_data_2026,
  author    = {Arr{\'o}yave, Raymundo and Saal, James and Shin, Dongwon},
  title     = {{ORCHID data: umbrella record of the ORCHID datasets}},
  version   = {2026.10},
  publisher = {Zenodo},
  year      = {2026},
  doi       = {10.5281/zenodo.23736065},
  url       = {https://doi.org/10.5281/zenodo.23736065},
  note      = {Version 1, machine-extracted}
}